Pressure pump device



L. T. ERCK PRESSURE PUMP DEVICE Filed Nov. 14, 1966 ATTORNEY UnitedStates Patent Cflce 3,410,221 Patented Nov. 12, 1968 3,410,221 PRESSUREPUMP DEVICE Leo T. Erck, Rte. 4, Minot, N. Dak. 587 01 Filed Nov. 14,1966, Ser. No. 594,047 2 Claims. (Cl. 103-202) ABSTRACT F THE DISCLOSUREThe invention comprises and elongated removable well pumping deviceadapted to be introduced into a well tubing of a well comprising anelongated pipe structure with a pump at the lower end, a plurality ofannular resilient collar-like sealers at spaced intervals along thelength of the pipe structure with the uppermost one of said Sealers setbelow the rst line, a horizontal outlet connected to the well tubingbelow the uppermost sealer.

This invention relates to well equipment, more particularly, theinvention relates to my earlier copending patent application U.S. Ser.No. 484,235, led Sept. 1, 1965 for Pressure Pumping Device.

It is an object of this invention to provide a novel tankless, pitlesspumping device.

It is a further object of this invention to provide a tankless pumpdevice which does not require a tank to operate and which will dispensethe water from the well below the frost line.

Further objects and advantages of the invention will become apparent asthe description proceeds and when taken in conjunction with theaccompanying drawing wherein:

FIGURE 1 is a side elevational view of the tankless pitless pump devicewith portions broken away to reveal the interior of the tankless device.

FIGURE 2 is a cross-sectional view taken along line 2-2 of FIGURE 1.

FIGURE 3 is an enlarged cut away view of one of the annular sealers.

FIGURE 4 is an enlarged cut away view of the upper end of the tanklesspitless invention.

FIGURE 5 is an enlarged fragmentary showing of the rubber collar andwell tubing.

Briey stated, the invention comprises a tankless pump device having anelongated vertical pipe with a pump at the lower end of the pipe adaptedto be introduced into the ground, three rubber collars mounted at spacedintervals along the length of the pipe, with the uppermost collaradapted to be set below the frost line, a second and third lower collarsadapted to be set in spaced relation in the well to form a tankreservoir and with the water adapted to be pumped out of the well belowthe uppermost collar and thus below the frost line in the earth.

Referring more particularly to the drawing in FIG- URE 1, the tanklesspitless pump device 20 is shown installed within the well tubing 21 of awater well 22 beneath the surface 23 of the ground.

The tankless pitless pump 20 has a central pipe structure 24, with threerubber collars 25, 26, and 27 mounted over the enlarged cylinderportions 28, 29, and 30 of the central pipe structure 24. Three coilsprings 31, 32, and 33 are mounted to the pipe structure 24 along itsreduced neck portion 28', 29', and 30 and act to urge the rubber collarsdownward.

Installation The rubber collars 25, 26, and 27, when in their positionillustrated in FIGURE l, create three water tight annular seals betweenthe pipe structure 24 and the well tubing at spaced intervals.

When installing the pump 20 in a well, the central pipe structure 24will be lowered into the well, the collars 25, 26, and 27 will initiallybe located above their position illustrated in FIGURE 1 so that thelower edges 25', 26', and 27 of the rubber collars will be urged toengage between the upper portions of the enlarged cylindrical portions28, 29, and 30 and the well tubing 21, by the springs being partiallycompressed by the collars and urging the collars downward.

However, as long as the pipe structure 24 is sliding downward in thewell, the frictional reaction of the rubber collars with the well tubingwill push the collars upward so that they do not create a seal or freezebetween the well tubing and the enlarged cylindrical portions.

The pipe structure will be lowered to the desired depth and then pulledback vup a short distance. The pulling of the pipe structure back up ashort distance, will draw the rubber collars fully down onto theenlarged cylindrical portions to their position illustrated in FIG- URE1, where they create a water tight seal.

When it is desired to remove the pump device, the pipe structure 24 willsimply be pulled up, which will cause the collars to slide downwardrelative to the pipe 24, from their position illustrated in FIGURE l,onto the reduced neck portions 29', 34, and 35 which allows them tocontract at least to a certain extent. The collar 25 in moving downwardrelative to the pipe will compress spring 32, to a certain extent, andthe collar 25 will contract to a certain extent, the collars 26 and 27will slide down about pipe portions 34 and 35 and contract, and thecatch plate 36 has four radial fingers 37 which will catch collar 27.

The pipe structure 24 installed by being lowered past the desired level,which level will be such that seal or collar 25 will be located belowthe frost line 38, whereupon the pipe structure will be raised a shortdistance causing the collars 25, 26, and 27 to slide downward to theirpositions shown in FIGURE 1, which creates three seals by the collars.The rst seal is below the frost line, the second seal 26 is below theoutlet pipe 39, and the third seal 27 is spaced below collar 26 to `forma tank reservoir of the height and corresponding capacity desired. Thepump (not shown) is mounted to the lower end 35' of the pipe structure24.

Within the pipe structure 24 is a cut off wall member 40 which directsthe tlow from the pipe section 24 out orifice 41 into the outlet pipe39, and prevents water from the pipe portion 34 of the pipe structure 24coming up directly from the pump, from going above the outlet pipe 39and allows it only to go out the outlet pipe 39.

Also, a metal support control block 42 is threaded onto the pipestructure 24 at the top along location 42'. The control block has apressure gauge 42 mounted to the block which communicates with theinterior, and a conventional pressure switch mounted within thecontainer 43 which communicates with the interior of the pipe 24 by theconduit 44 and a conventional one way valve or sniffer valve within thecontainer 43 which also communicates with the interior of the pipe 24 bythe conduit 44.

Air is pumped in initially into the top portion of the pipe 24 throughthe sniffer valve in the container 43 and via conduit 44 to create airpressure in the pipe and to keep the water in the tank area (betweenseal 26 and 27) under pressure.

The pump will pump water up into the tank reservoir area inbetween seal26 and 27 via orifice 45 and up along the central pipe portion 34 ofpipe structure 24 and out the conduit 39, vla the oriiice 41 in the pipestructure 24. The water is also free to travel up the pipe via the4opening 46 for the electric cord, however, air will be pumped inthrough the snilier valve to create air pressure in the top portion ofthe pipe structure 24 to maintain the water down in the reservoir area.

The air is pumped into the pipe structure 24 from the top to keep thewater in the tank area (between seal 26 and 27) under pressure so thatit will force water out of the reservoir area and out through orice 41and along pipe 39. When the Water pressure gets lower, it will alsocause a corresponding drop in the air pressure. When the air pressuredrops below a desired minimum, it will activate the pressure switch inthe container 43 (via conduit 44) at the top of the pipe. The activationof the pressure switch will activate the pump which will begin pumpingmore water up into the pipe structure to bring the pressure back up toits desired upper limit, and the pressure switch will automatically turnthe pump off again.

The water from the pipe structure 24 and tank area will pass out of thepipe structure along pipe 39 at a rate determined by the size of orice41.

The electric cord 46 extends from the pump up along the outside of thepipe structure 24 until it reaches a location just below seal 27, whereit enters through a rubber grommet seal 47, similar to the rubbergrommet seal 48 at the top of the pipe, and a threaded plug 49, similarto the plug S at the top of the pipe. The plug 49 has a center slot toreceive the cord and as it is threaded into the pipe structure itsqueezes the grommet together and creates a water tight seal. Similarly,tightening the plug 50 at the top of the pipe creates a water tightseal.

The rubber collars 25, 26, and 27 have a plurality of elongated ribs l.extending along their lengths which compress together to form a watertight seal when on the enlarged cylindrical portions 28, 29, and 30,respectively. The ribs also act to prevent the collars from freezing oradhering to the pipe walls when they have been expanded, and when it isdesired to remove the pipe structure and collars from the well.

A cover 52 covers the control block 42, container 43, pressure gauge42", and is attached to the well tubing 21 by bolts 53. A cap 54 has aprojecting flange 55 which rests on top of the well tubing 21 andSupports the pipe structure 24.

The invention may be operated without the tank reservoir area. The seal27 would not be used in the device, and the pump would merely activateeverytime water was to be pumped out from the well.

Thus, it will be seen that a novel tankless pitless pump system has beenprovided which can be easily mounted in a well and will pump water fromthe well below the rost line, to the point of consumption or use, andwhich creates a pressure tank area (between seals 26 and 27) 4- to causethe water to be fed out under pressure, and so that the pump does nothave to pump continually.

It will be obvious that various changes and departures may be made inthe invention without departing from the spirit and scope thereof andaccordingly it is not intended that the invention be limited to thatspecically described in the speciiication or illustrated in the drawingsbut only as set forth in the appended claims.

I claim:

1. An elongated removable well pumping device adapted to be introducedinto a well tubing of a well comprising an elongated pipe structure witha pump at the lower end, a plurality of annular resilient collars atspaced intervals along the length of the pipe structure serving assealers, with the uppermost collar set below the frost line, ahorizontal outlet connected to the well tubing below the uppermostcollar, a second one of said collars disposed below the horizontaloutlet, expansion means on said pipe structure for each of said collars,spring means 4for each of said collars for urging said collars into asealed position of said expansion means, said collars being frictionallymovable relative to said expansion means from said expansion means to acontracted unsealed position for the removal of said pump device fromsaid well, said pipe structure having an outlet between said first andsecond collars, said first and second collars serving as a seal betweensaid pipe structure and said well tubing above and below said horizontaloutlet whereby ud may be pumped by said pump up through said pipestructure and out said pipe outlet into said horizontal outlet.

2. An elongated removable Well pumping device according to claim 1wherein said plurality of collars includes a third resilient collardisposed below said second one collar providing a pressure tankreservoir area between said second and third collar for said pipe deviceso that pressure pumping may be provided, expansion means and springurging means on said pipe device, said spring means for said thirdcollar urging said Collar into a sealed position on said expansionmeans, said third collar being frictionally movable relative to saidexpansion means away from said expansion means to a contracted unsealedposition for the removal of said pump device from said well, said pipestructure having an opening between said second and third collarproviding uid communication between said reservoir area and said pipestructure, pressure sensitive valve means regulating the pressure insaid reservoir area.

References Cited UNITED STATES PATENTS 2,657,637 1l/l953 Baker 103-2193,064,580 ll/l962 Calvert et al 103--4 3,065,697 ll/l962 Andrew 103-6 XRROBERT M. WALKER, Primary Examiner.

